:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-card: #252525;
    --text-primary: #f0f0f0;
    --text-secondary: #a0a0a0;
    --accent-primary: #3b82f6;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    --transition: all 0.2s ease;
}

.local-participant .volume-control {
    display: none;
}


body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    margin: 0px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.hidden {
    display: none !important;
}

header {
    text-align: center;
    margin-bottom: 40px;
    padding-top: 20px;
}

header h1 {
    font-size: 2.8rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

header h1 i {
    color: var(--accent-primary);
    margin-right: 15px;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.card {
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 25px -5px rgba(0, 0, 0, 0.4);
}

.card h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
}

.card h2 i {
    margin-right: 12px;
    color: var(--accent-primary);
}

.card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.features {
    list-style: none;
    padding-left: 0px;
}

.features li {
    margin-bottom: 15px;
}

.features li i {
    margin-right: 12px;
    margin-top: 3px;
    color: var(--accent-success);
    min-width: 20px;
}

.features li strong {
    color: var(--text-secondary);
}

.btn-primary, .btn-secondary, .btn-success, .btn-danger, .btn-warning {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: var(--border-radius);
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    gap: 10px;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: white;
}

.btn-primary:hover {
    background-color: #2563eb;
    transform: scale(1.05);
}

.btn-secondary {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--text-secondary);
}

.btn-secondary:hover {
    background-color: #2d3748;
}

.btn-success {
    background-color: var(--accent-success);
    color: white;
    padding: 14px 0;
}

.btn-success:hover {
    background-color: #0da271;
}

.btn-danger {
    background-color: var(--accent-danger);
    color: white;
}

.btn-danger:hover {
    background-color: #dc2626;
}

.btn-warning {
    background-color: var(--accent-warning);
    color: white;
}

.btn-warning:hover {
    background-color: #e69007;
}

.btn-small {
    padding: 8px 16px !important;
    font-size: 0.9rem !important;
}

.link-container {
    display: flex;
    gap: 10px;
    margin: 20px 0;
}

.link-container input {
    flex-grow: 1;
    padding: 14px;
    border-radius: var(--border-radius);
    border: 1px solid var(--bg-secondary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
}

footer {
    text-align: center;
    padding: 30px 0;
    color: var(--text-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 20px;
}

.meeting-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    padding: 10px;
    background-color: var(--bg-primary);
}

.meeting-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: var(--border-radius);
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.meeting-info {
    display: flex;
    flex-direction: column;
    align-items: start;
}

.meeting-header h1 {
    font-size: 1.4rem;
    font-weight: 500;
    margin: 2px;
    padding-bottom: 5px;
}

.meeting-id {
    font-family: monospace;
    font-size: 0.9rem;
    background-color: rgba(0, 0, 0, 0.3);
    padding: 6px 10px;
    border-radius: 4px;
    color: var(--accent-primary);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.controls-container {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    padding: 12px;
    background-color: rgba(0, 0, 0, 0.7);
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 100;
}

.control-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    border-radius: var(--border-radius);
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    min-width: 80px;
    gap: 6px;
}

.control-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.control-btn i {
    font-size: 1.2rem;
}

.control-btn span {
    font-size: 0.8rem;
    font-weight: 500;
}

.control-btn.active {
    background-color: var(--accent-primary);
    color: white;
}

.control-btn.danger {
    background-color: var(--accent-danger);
    color: white;
}

.control-btn.warning {
    background-color: var(--accent-warning);
    color: white;
}

.control-btn.success {
    background-color: var(--accent-success);
    color: white;
}

.device-selector {
    position: absolute;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.9);
    border-radius: var(--border-radius);
    padding: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    min-width: 250px;
    display: none;
}

.device-selector.active {
    display: block;
}

.device-selector h4 {
    margin-bottom: 12px;
    font-size: 1rem;
    color: var(--text-primary);
}

.device-selector select {
    width: 100%;
    padding: 8px 12px;
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    margin-bottom: 12px;
}

.device-selector select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.header-stats {
    display: flex;
    align-items: center;
    gap: 10px;
}

.participant-count {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.participant-count i {
    color: var(--accent-primary);
}

.device-group {
    margin-bottom: 12px;
}

.device-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.device-group input {
    width: 100%;
}

.participants-list {
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: 12px;
}

.participant-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: 6px;
    background-color: rgba(255, 255, 255, 0.05);
    margin-bottom: 6px;
    font-size: 0.9rem;
}

.participant-item i {
    color: var(--accent-primary);
}

.participant-badge {
    margin-left: auto;
    font-size: 0.8rem;
    padding: 2px 8px;
    border-radius: 10px;
    background-color: rgba(59, 130, 246, 0.2);
    color: var(--accent-primary);
}

.control-group {
    margin-bottom: 15px;
}

.control-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.control-group select, .control-group input {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--bg-secondary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.volume-slider {
    display: flex;
    align-items: center;
    gap: 15px;
}

.volume-slider input {
    flex-grow: 1;
}

.participants-container {
    flex-grow: 1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    grid-auto-rows: 300px;
    gap: 16px;
    overflow-y: auto;
    padding: 16px;
    place-items: center;
    align-content: center;
}

.participant-card {
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
    width: 300px;
    height: auto;
}

.participant-card:hover {
    border-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.participant-card.zoomed {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 955px;
    height: 450px;
    z-index: 1000;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 2px solid var(--accent-primary);
    overflow: visible;
}



.participant-card.local-participant {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 1px var(--accent-primary);
}

.video-container {
    position: relative;
    width: 100%;
    height: 100%;
    flex-grow: 1;
    background-color: rgba(0, 0, 0, 0.3);
}

.video-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background-color: transparent;
}

.video-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background-color: transparent;
}

.video-overlay {
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    padding: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.participant-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.participant-info i {
    font-size: 0.9rem;
}

.participant-actions {
    display: flex;
    gap: 6px;
}

.participant-actions .btn-small {
    padding: 4px 8px !important;
    font-size: 0.8rem !important;
    min-width: auto;
}

.participant-status-bar {
    padding: 12px 10px;
    background-color: rgba(20, 20, 20, 0.95);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
    padding-left: 13px;
}

.volume-control {
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 140px;
}

.volume-control input {
    flex-grow: 1;
    height: 6px;
    border-radius: 3px;
    background-color: rgba(255, 255, 255, 0.15);
    cursor: pointer;
}

.volume-control input::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--accent-primary);
    cursor: pointer;
}

.volume-control input::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--accent-primary);
    cursor: pointer;
    border: none;
}

.participant-status {
    font-size: 0.8rem;
    color: var(--text-secondary);
    padding: 2px 8px;
    border-radius: 10px;
    background-color: rgba(255, 255, 255, 0.05);
}

.screen-share-indicator {
    position: absolute;
    top: 8px;
    left: 8px;
    background-color: var(--accent-warning);
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    gap: 4px;
    z-index: 10;
}

.zoom-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: var(--transition);
}

.zoom-btn:hover {
    background-color: var(--accent-primary);
    transform: scale(1.1);
}

.zoom-btn i {
    font-size: 0.9rem;
}

.no-video {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.5));
    color: var(--text-secondary);
}

.no-video div {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.no-video i {
    font-size: 2rem;
    opacity: 0.5;
}

.no-video p {
    font-size: 0.9rem;
    opacity: 0.7;
}

.participant-card {
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
}

.local-participant {
    border: 2px solid var(--accent-primary);
}

.video-container {
    position: relative;
    width: 100%;
    background-color: var(--bg-primary);
    aspect-ratio: 16/9;
}

.video-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background-color: var(--bg-primary);
}

.video-overlay {
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    padding: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.participant-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.participant-actions {
    display: flex;
    gap: 10px;
}



.screen-share-indicator {
    position: absolute;
    top: 10px;
    left: 10px;
    background-color: var(--accent-warning);
    color: white;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 5px;
    z-index: 10;
}

.no-video {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 1.2rem;
}

.no-video i {
    font-size: 3rem;
    margin-bottom: 10px;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    main {
        grid-template-columns: 1fr;
    }

    .meeting-container {
        padding: 0px;
    }
    
    .meeting-header {
        flex-direction: column;
        align-items: stretch;
        margin-bottom: 0px;
    }

    .meeting-info {
        align-items: center;
    }

    .header-stats {
        justify-content: space-between;
        margin-top: 2px;
    }

    .meeting-id {
        font-size: 0.75rem;
        width: calc(100% - 20px);
        margin: 0 10px;
    }
    
    .controls-grid {
        grid-template-columns: 1fr;
    }
    
    .participants-grid {
        grid-template-columns: 1fr;
    }
    
    .participants-container {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        grid-auto-rows: 250px;
        gap: 45px;
        padding: 12px;
        padding-top: 0px;
        margin-top: -60px;
    }
    
    .participant-card {
        width: 280px;
        height: 280px;
    }
    
    .participant-card.zoomed {
        width: 350px;
        height: 350px;
        overflow: visible;
    }
    
    .btn-primary, .btn-secondary, .btn-success, .btn-danger, .btn-warning {
        width: 100%;
        justify-content: center;
    }
    
    .link-container {
        flex-direction: column;
    }

    .controls-container {
        bottom: 0px;
        padding: 8px;
        gap: 6px;
        height: 55px;
    }

    .control-btn {
        padding: 8px 12px;
        min-width: 70px;
        font-size: 0.9rem;
        flex: 1;
    }

    .control-btn span {
        display: none;
    }
    
    .control-btn i {
        font-size: 1rem;
    }
}

.fa-spin {
    animation: fa-spin 1s linear infinite;
}

@keyframes fa-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}